Electric railway-switch.



H. A. JACKSON. ELECTRIC RAILWAY SWITCH.

APPLICATION FILED MAR. 27, 1914.

THE NORRIS PET-ERS CO. PHOTO-LITHO.. WASHINGTON. D. C.

H. A. JACKSON.

ELECTRIC RAILWAY SWITCH. APPLIGATION FILED' MAR. 27, 1914.

1,102,664, Patented July '7, 1914 2 SHEETS-SHEET 2.

Urrnn sri-iras arena* cierren.

HINTON AUSTIN JACKSON, OF CLINTON, INDIANA., ASSIGNOR OF ONE-HALF TO DUNCAN B. MEDILL, OF CLINTON, INDIANA.,

ELECTRIC RAILWAY-SVr/'I'I'CI-I.

To all whom. it may concern.'

Beit known that I, `l-IINTON AUsTIN JACKSON, a citizen of the United States` ot vAmerica, residing at Clint-oinin the county of Vermilion and State of Indiana, lhaveinvented.V certain new 4and useful Improvements in Electric Railway-Switches, of which the following is a specification.

The present invention relatesto improvements in electric railway switches, designed especially for use in switching mine cars in mines.

The primaryobject of the inventionr is to improve the switchingk mechanism for mine cars, so that the cars may be shunted as desired. f

Many automatic switches kare now in use on mining railways for shunting cars alternately first on to one track and next on to another track from an incoming track, but with the utilization of my switch and electric apparatus as many cars as are desired can be thrown or shunted from a single incoming track on to either of two outgoing tracks, either alternately, or following on the same track in succession.

The invention consists essentially in the novel combination and karrangements of a single incoming track and a pair of outgoing tracks with their switches, and a single pole double throw electric switch for controlling the switch tongues to open or close the outgoing tracks.

In the accompanying drawings I have illustrated one complete example of the physical embodiment of my invention constructed according to the best mode I have so far devised for the practical application of the principles of the invention.

Figure 1 is a plan view of a portion of a mine railway showing the end of an incoming track and the switches :tor two outgoing tracks therefrom and the electric control of these parts. Fig. 2 is a side elevation ci a portion of a rail showing the contact lever for completing the electric circuit to operate the device. Fig. 3 is an enlarged detail view of a portion of Fig. 1, to more clearly illust-rate the construction of the parts.

In the Preferred embodiment of my invention I employ the straight incoming track comprising the rails 1 1, and provided with the bumper or bumper block 2 at the end of the track. Both rails of the incoming track are broken as indicated7 and the sec- Specification of Letters Patent.

y section y 4L.

Patented July 7, 1914.

y Application led March 27, 1914.. Serial No. 827,590.

`tions 2-2 of this ltrack areturned out on 7 pivoted at 8 in line with the frog section Il, and the outgoing track `6 has a switch tongue 9 pivoted at 1() in line with the frog In the drawings the switches are arranged so that a car can be shunted from the incoming track to the outgoing track 6. The switch tongues 7 and 9 are controlledby the respective electromagnets 11 and 12, each located outside of the track and inposition so that its armature k13 and link 14, the latter attached to the switch tongue, are in position to move the switch tongue when either of the electromagnets are energized. rlhese electromagnets are energized by the presence` of a mine car, the wheels of which are adapted to ride down a lever arm 15, pivoted at 16 to the side of the rail 2. In Fig. 2 it will be seen that the longer arm 17 of the'lever is of sufficient weight to hold the short arm 15 raised, so that the two contact points 18 and 19, the former on the lever, and the latter in stationary position, are normally held apart. It will be readily seen, however, that when the mine car rides down the short end of the lever the points 18 vand 19 are brought into cont-act.

The apparatus is electrically controlled from the single pole double throw switch 21. I arrange the negative wire 22 and the negative wire 23 of the respective magnets 11 and 12, in connection with the switch 21, the wires being connectedrespectively to the points 24 and 25 of the switch. The line switch 26 is connected by wire 27 to the double throw switch 21, and by wire 28 it is connected to the contact point 18 ot' the lever 15. The two electromagnets are connected by the wire 29, and this wire 29 has connected thereto the wire 8O which is also connected to the stationary Contact point 19.

In operation, the double throw switch 21 is controlled by an attendant, and as the parts are set in Fig. l, a mining car may enter on the incoming track 1, and as the switch tongue 9 is not rigidly held, the wheels of the car will pass through they i the left outgoing track has a switch tongue thrown to point 25, and in this way the switch with slight obstruction.` The mining. v

car runs to the left in Fig. 1, luntil it rides downl the lever '15 and loringsthe points 18 and 19 into contact. Thecircuit is now completed from the switch 26,`wire 28, y'wire 30,

wire 29, and eithervone of the'selected mag.

nets 11 or 12. tit is desired to shunt the car o-n the outgoing track 6,the switch 21 will be thro-wn to the point 25 andthen a circuit will be closed from-the wire 29, mag# 1 net- 12, wire 23,V point 25, switch 21,land wire v27 back to the 'switch 26. It may not be absolutely necessary that the switch 21 be thrown over'to thek point 25, but as a matter .of precaution and absolute safety after thev mining .car runs through the switch on the incoming track, the switch 21 should be energized electromagnet 12 positively throws the switch and holds it so that the car may now he shunted tothe outgoing track .6. It' itis desired the next incoming car may shunt to the same track 6. If, however, the next incoming car is to he shunted tothetrack 5, the switch 21 is thrown over v thenthe track is provided for the passage of the outgoing car. f

From the above description taken in connection with my drawings, it will loe seen that the apparatus may loe operated with facility, and Athat the carsl may `loe. ysliuiited with accuracy and despatch, and that the invention in its physical embodiment possesses many meritorious andnovel features Lto commend it as a practical and efficient device. p p

Having thus fully vdescribed vmy invention, what I claim as new and desire to sec-ure by Letters Patent, is i 1. In an electrically controlled switching mechanism, 'the combination with a straight track, a pair" of divergent tracks, and a "pair (yf-switch tongues between the rails of the'straight track, of an.'electromagn'et at each side of the s traighttrack having an 'armature-connected to the switch tongue, a

double throw switch 'controlling said'ma-gnets,y anda weighted lever actuated by `the movement of a. car'for closing the circuit to operate either of saidswitches.

2. In anfelectrically operated switching tongues, of'-electromagnets each having an armature linked to one of saidtongues, a

vsingle pole' double throw switch for operating selectively either of said` magnets, anda circuitcloser comprising aweighted lever toloe operated by a passing car.,l l In testimony whereofl aliix my signature in presence of -twoy witnesses.` n HINTONVAUSTIN JACKSON..

illitnesses: c

p J. WVQFLATTERY, ISAAC MoINTosH'.

Copies of this patent may be obtained fory inejcents each, byfaddressing the omxixiissonerr of Patents,

c Washington, D. C. i 

